Apparatus for making lasting binders



Aug. 17 1926. 1,596,419

, M. E. FERNALD APPARATUS FOR MAKING LASTING BINDERS Filed March 4, 1922 3 Sheets-Shem 1 A by w Aug. 17, 1926. 1,596,419

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APPARATUS FQR MAKING LASTING BINDERS 3 Sheets-Sheet 2 Filed March 41 1922 MUN Aug. 17 1926. 1,596,419

- M. E. FERNALD APPARATUS FOR MAKINGLASTING. BINDERS Filed March 4, 1922 s Sheets-Sheet 5 Patented Aug. 17, 1926.

UNITED STATES MARK E. FERNALD, OF SOUTHBORO, MASSACHUSETTS, ASSIGNOR TO 0. C. BLAKE, IN-

CORPORATED, OF BOSTON, MASSACHUSETTS, A CORPORATION OF NEW YORK.

APPARATUS FOR MAKING LASTING BINDERS.

Application filed March'4, 1922. Serial No. 541,247.

This invention relates to the manufacture of boots and shoes and more particularly to apparatus for making a formedbinder for use in lasting shoe uppers.

In an application Ser. No. 465,131, filed April 28, 1921, by Charles C. Blake, reference to which is made by permission, there is disclosed and claimed a novel method of making shoes which includes the temporary securement of the lasted upper by applying a previously formed binder, outside the upper, about the toe of the shoe and the permanent securement of the upper to the in sole by securing means extraneous of the binder. The binder, disclosed in said copending application, comprises a shaped me tallic form adapted to fit the toe end of the shoe and to hold the lasted upper positively in contact with every point on the edge face of the insole around the forepart thereof.

The object of the present invention is to manufacture binders, of the kind in question, in a manner to .ensure their being of such size and conformationas accurately to fit any size or style of shoe with which they are to be used in performing the lasting op eration. Accordingly the present invention invention comprises the novel arrangement,

comprises an apparatus for shaping the binders to the desired conformation, having means for adjustment adapting the apparatus to the production of binders for different sizes and styles of shoesas may be desired.

T o the accomplishment of this object, and such others as may hereinafter appear,the

features and combinations of parts herein after described and them particularly pointed out in the appended claims.

The preferred form of the apparatusfor.

producing a lasting binder of the desired conformation is illustrated inthe accompanying drawings, in which Figure 1 is a plan view of the apparatus with the parts in position before the lasting binder has illustrating the 'pesiticn lastis shownat 12 in Fig. 3. The table 10 is provided at its forward end with an upstanding transverse flange 11 and with an inverted T-shaped way 16 (Fig. 3) extending longitudinally at the rear of this flange and ending about midway the length of the table. In this T-shaped way there is mount ed a slide block 18 which is secured by screws 20 (Figs. 1 and 2) to the under side of a table or slide plate 22 which is movable over the top surface of the way 16 and in a cutaway portion 2 1 (Fig. 3) in the top face of the flange 14L. The upper surfaces of the flange and the slide are flush (see Fig. 3). The plate or slide 22 is provided .with a central longitudinal slot 26 (Figs. 1 and-2) adapted to receive a pair of headed bolts 28 which support a sole-shaped leader, or leader blank, 30 which forms the'teinplet about which the lasting binder is to be shaped. The'heads of the bolts 28 are seated and held from turning in a longitudinal slot formed in the upper surface of the slide block 18 (see Fig. 3) and the templet 30 is secured in position by nuts 32 threaded on the upper ends of the bolts 28 which'are passed through the usual pair of bolt holes with which a leader of this type is provided. Between the leader and the slide plate 22 the bolts 28 carry spacing collars 3 1 so that the leader flange is raised from the upper surface of the slide plate for a purpose which will presently appear. p

The purpose and use of the leader hereinbefore referred to will be explained at this point, In the .type of welt shoe in the manufacture of which the lasting binder of the present invention is to be used, in order to prepare 'a lasted shoe for the bottoming operations it is mounted on a jack of the saddle and spindle type to which one of these leaders is secured. This leader is protions of the edge face of the insole of the shoeen the jack the inside face of the guiding flange except at the toe of the leader where there is a slight variation to allow for the box toe. If the box toe is considered, for purposes of illustration as a part of the insole, then the projections of the edge face of the insole coincide with the inside face of the guiding flange entirely around the leader. The leader carrying the jacked shoe is inserted in an automatic ma chine in which the leader isactuated to transfer the point of operation of the welting or other shoe bottoming tools around the shoe. During its actuation the leader is swung laterally about an axis passing through the point of operation of the operating tool in order to permit the tool to traverse the lateral reverse curves present in the peripheral outline of a shoe sole. It will thus be apparent to those skilled in the art that the inside face of the guiding flange on the leader bears a definite relation to the edge face of the insole. This relation is taken advantage of in the formation of the lasting binder to which the present inven tion relates. A leader, or leader blank, is used as a templet on which to shape the lasting binder, because the forepart of the leader provides the exact conformation desired.

In order to utilize the leader as a templet it is mounted on the bolts 28 and the spacing collars 34 are so selected as to thickness that when the binder is wrapped around the forepart of the leader, while lying upon the upper surface of the slide 22, its inner surface will be spaced from the inside face of the guiding flange 31 a distance equal to the thickness of the upper materials on the shoe which is being manufactured. It will be obvious that a lasting binder which has been so shaped will accurately fit the forepart of the insole about its edge, and when placed in this position upon a lasted, unsoled shoe it will hold the upper positively in contact with every point on the edge face of the insole around the forepart thereof.

At each side of the templet, and lying in the plane of the upper face of the slide 22 are two side arms 36 and 38 for gripping and holding the lasting binder while the shaping operation is being performed. Since these two arms are constructed alike, a description of one will suffice for both. The arm 36 is pivoted at its rear end, by a bolt 40. to ablock 42 which is slidable in a way formed between two flanges 14 and l6 rising from the face of the table 10. The transverse position of the block 42 in its way is determined by a screw 48 threaded through the block with an unthreaded end turning loosely in a fixed block 50, and held from longitudinal movement by the usual pair of collars on each side of a cross piece 52 which closes the outer end of the way- Rotation of the screw to shift the pivot 40,

is obtained by means of a hand wheel 54. The purpose of the adjustment of the pivot of the side arm will presently be made clear. The forward end of the arm 36 is provided with a lasting binder gripper in the form of an inwardly projecting plate 56 secured to the under side of the arm (Figs. 1 and 3). The edge of the inner free end of this gripper 56 is slotted longitudinally, as shown at 58, to receive one end of the lasting binder 60. The arm 36 is provided with a longitudinal slot 62 about midway its length in which is seated an adjustable slide block which carries a roll 64 at the under side of the arm (dotted lines Figs. 1 and 2) In the starting position shown in Fig. 1 the rolls 64 on the two arms 36 and 38 are so adjusted as to bear against the oblique rear sides of wings 66 projecting transversely from the slide plate 22 at such points that a straight binder of the desired length will be re ceived by the two grippers 56. The rolls are held in contact with the wings 66 by means of atransverse coiled spring 68 having its ends connected respectively to lugs on the two arms.

Longitudinal movement is imparted to the slide plate 22, and the attached templet, by reciprocation of a rack bar 7 O which is shaped to fit and slide in a longitudinal way 72 (Figs. 1 and 4t) formed centrally of the upper surface of the rear portion of the table 10, The rack bar may be connected to the rear end of the slide plate 22 as shown in Figs. 1 and 2, or in any other convenient manner. Meshing with the teeth of the rack bar are the teeth of a segment 74 which is secured by a key 76 (Fig. 4) to a rotatable vertical pin 78, to the upper end of which is secured an operating handle 80. The pin 78 is seated within a bushing 82 which lines a vertical bore in a boss 84 formin a part of table 10, its vertical position being deter. mined bya flange 86 which engages the upper side of the hub of the segment 7 4,

In shaping the lasting binder a binder blank comprising a piece of hot wire of suitable length and gauge, preferably about three-sixteenths of an inch in diameter, is laid on the table 22 in the position shown in Fig. 1 with its ends placed within the slots 58 formed in the gripper plates 56. In this position the straight binder forms a tangent to the toe end of the leader about which it is to be wrapped to give it the desired conformation. The handle 80 is now moved 'to the left (viewing Fig. 1) which moves the slide plate 22 and leader 30 forward relative to the side arms 36 and 38. As the leader advances it bends the hot lasting binder, the ends of which are held from forward movement, and the spring 68 simultaneously draws the two side arms and grippers 56 inward. This forward advance of the slide plate is continued until the wire has been.

closely enwrapped about the forepart of the leader to the ball-line at each side, at which time its ends extend in the position shown by dotted lines in Fig. 2, giving the binder a substantial U-form. It will be obvious to those skilled in the art that when the shaping of the binder has reached this stage the pull from the grippers 56 should be in a direction substantially in line with the arms of the U-shape assumed by the binder. The purpose of the adjustable sidearm pivots 40 will now be apparent, for with different widths of leaders the condition just referred to cannot be maintained unless the distance between the pivots 40 is varied to accommodate the variation in the distance between the arms of the U due to the size of the leader.

The forward movement of the slide plate 22 is limited by means of an adjustable stop 88 (Fig. 1) threaded through a horizontal boss 90 at the outer end of a bracket 92 secured to the forward end of the frame 10. Such a stop is quite necessary since an exces sive forward movement of the slide plate would cause the gripper 22 to straighten out the extreme out-turned ends of the hot wire which form an important mechanical feature of the completed binder.

In order to completely conform the lasting binder to the outline of the forepart of the leader, means is provided for forcing the straight sides of the binder inward from the dotted line position of Fig. 2 to the full line position of that figure in such manner that in its final form the blank is bent into the reverse curves at the juncture between the forepart and the shank of the form and an angular bend remains at each end due to the continued engagement of the grippers 56. Accordingly, the side arms 36 and 38 are provided on their forward ends with a transverse connecting bar 94. This bar 94 slides loosely through a housing 96 secured to the upper face of the side arm 38 and is provided with a slot 98 through which projects a pin 100 rising from the upper face of the side arm 36. A coiled spring 102 has'its ends connected to the pin 100 and to a second pin 104 at the extreme end of the bar 94. The tension of the spring 102 normally maintains the pin 100 at the outer end of the slot 98. Pivoted to the under side of the bar 94, outside of the side arm 36, is an operating lever 106 provided with a cam head 107. Pivoted in the housing 96 on the side arm 38 is a pawl 108 which is maintained yieldingly in engagement with teeth 110 on the rear edge of the bar 94 through pressure of a leaf spring 112. Prior to the movement of the, leader hereinbefore described, the pawl 108 is turned by hand to the position shown in Fig. 2, which, because the teeth point toward the lever 106, does not prevent the transverse bar 94 from sliding freely within the housing 96,- as the side arms 36 and 38 are brought together by their connectlng spring 68. As soon as the advance of the leader has been com aleted the lever 106 is moved to the ri ht (viewing Fig. 2) and its cam head operates upon the outer side of the side arm 36 to force the leader gripping plates 56 inward and press the straight ends of the binding wire inward into contact with the leader flange and complete the shaping of the binder. The first pressure from the cam 10? causes the side arm 36 to move inward relatively to the cross bar 94, stretching the spring 102 slightly but this pressure also simultaneously draws in the side arm 38 by reason of its connection to the bar 94 through the pawl 108. The cam 10. is designed to provide sufficient leverage to move the side arms inward the distance required to firmly press the ends of the binder against the edge of the leader at the rear of the ball-line. The final result is a shaping of the lasting binder to the form shown in full lines in Fig. 2, the cam107 locking the parts in the position shown in said figure.

The binder is permitted to remain on the templet until it has cooled sufiiciently to hold its shape, whereupon the pawl 108 is re leased, the handle 106 is moved to the left, and finally the handle moved to the right. This last operation withdraws the slide'plate 22 and the leader from the shaped lasting hinder, the final part of this movement causing the wings 66 on the slide plate to engage the rolls 64 on the side arms and turn them outwardly against the force of the spring 68 to withdraw the gripping plates 56 from the out-turned ends of the completely formed binder.

While the lasting binder has been de scribed as formed from wire it should be understood that a circular cross-section, while convenient, is not essential. Accordinglyv in the appended claims the terinfilasting binder is used as defining broadly any material which may be shaped to a desired form and retain that form permanently.

The scope of the invention having been inclicated and the preferred form of the apparatus having been specifically described, what is claimed as new, is

1. Apparatus for making lasting binders, having, in combination, a solesha-ped form, means for supporting the form, means for holding a lasting binder blank, means for relatively moving the form-supporting and blank-holding means to cause the blank to.

be bent about the forepart of the form, and means for relatively moving the form-supporting and blank-holding means to cause the blank to be bent into the reverse curves at the junction between the forepart and the shank of the form.

2. Apparatus for making lasting binders, having, in. combination, a SOlG SlTlELQBd. form having a guiding flange provided with inside and outside faces, means for supporting the term, means for holding a lasting binder blank, means for relatively moving the fornrsupporting and blank-holding means to cause the blank to be bent about the torepart of the form, and means for predetern'iining the line of engagement of the blank with the form to locate the blank on the form a predetermined distance from the inside face of the guiding flange.

3. Apparatus for making lasting binders, having, in combination, a table, spacing mean carried thereby, a sole-shaped form mounted on said spacing means, means for holding a lasting binder blank in position on the table, and means for relatively moving the table and blank-holding means while the blank remains in contact with the table to cause the blank to be bent about the forepart oi the form.

a. Apparatus for making lasting binders, having, in combination, a table, spacing means carried thereby, a sole-shaped form mounted on said spacing means, means for holding a lasting binder blank in position on the table, means for moving the table while the blank remains in contact with the table to cause the blank to be bent about the forepart of the form, and means for moving the blank-holding means independently to cause the blank to be bent into the reverse curves at the juncture between the forepart and shank of the form. I

5. Apparatus for making lasting binders, having, in combination, a sole-shaped form having an internal guiding'face, means for supporting the form, means for holding a lasting binder blank, means for relatively moving the form and binder blank to cause the blank to be bent about the rorepart of the form, and means for spacing the form and binder blank relatively in a direction normal to the bending stroke to cause the blank to engage the form at a pretermined distance from the internal guiding face.

6. Apparatus for making lasting binders, having, in combination, a sole-shaped lorm having a depending flange, means for supporting the form, means for holding a lasting binder blank, means for relatively mov ing the form and blank to cause the blank to be bent around the forepart of the form, and means for spacing the form and blank relatively in a direction normal to the bending stroke to cause the blank to engage the lower corner of the depending flange on the "orm.

MARK E. FERNALD. 

